Thanks!If you decide to, you should be able to use drywall butterfly fasteners with a 1 1/2 - 2"OD washer behind the bolt head to hold up the horse mats for deadening.
You might have to add more ribs to the inside roof so you can maintain a good support for the mat, but those should work
i like the way you think! what more would i expect of YOU than great ideas though.Once you get a DSP and get the install buttoned up it is relatively easy to tame below 30Hz with filters and EQ - too much is better than not enough... and music is WAY different than test tones.
i noticed somewhere in this thread i believe you said ported would take more power to get moving, something to the effect of 3000 watts wow, i will only have the 1500 watts at 2 ohms.
im not exactly sure what this means.20ft3 = BP6P or TH.
TH is Tapped Horn BTW but the HT18v3 is not really a Compression Style Sub and the last thing you need is to try and start building one of those...i noticed somewhere in this thread i believe you said ported would take more power to get moving, something to the effect of 3000 watts wow, i will only have the 1500 watts at 2 ohms.
Im wondering if i turn this into a ported box, would the output actually go down because of the "box" and the need for more juice, and im kind of thinking yes but no because of the added +3ish db so i need expert advice on this one sir. im on the fence.
IF I GO PORTED, it will be about 20 cubic ft after displacement of subs, bracing etc, and tuned around 28hz maybe a little lower because i already get a nasty bump at 40hz and that tuning would have a hump at 35 that i probably dont need.
TH is Tapped Horn BTW but the HT18v3 is not really a Compression Style Sub and the last thing you need is to try and start building one of those...
Anyway, Ported loses output vs IB since the box provides cone control down to the tuning frequency and then you lose all the output below tuning cause the cone unloads from the enclosure and moves without making hardly any sound which means you have to run a 20Hz HP Filter to keep from damaging the Sub. So you gain output due to the porting down to where the IB slope comes in and then the IB has more output below that frequency. This is what that looks like without cabin gain:
View attachment 342512
Then what happens with cabin gain:
View attachment 342513
So you get this huge peak right in the "meat" of bass guitar and kick drum but without any of the supporting sub-harmonics and virtually none of the synthesized bass in the lower 20s or teens. More down to tuning and then nothing after about 1/2 octave below tuning.